Wearable computer using programmed local tag

ABSTRACT

A wearable computing device includes a head-mounted display (HMD) that provides a field of view in which at least a portion of the environment of the wearable computing device is viewable. The HMD is operable to display images superimposed over the field of view. When the wearable computing device determines that a target device is within its environment, the wearable computing device obtains target device information related to the target device from a programmed local tag. The target device information may include information that defines a virtual control interface for controlling the target device and an identification of a defined area of the target device on which the virtual control image is to be provided. The wearable computing device controls the HMD to display the virtual control image as an image superimposed over the defined area of the target device in the field of view.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application is a continuation and claims the prioritybenefit of U.S. patent application Ser. No. 16/031,690 filed Jul. 10,2018, now U.S. Pat. No. 10,318,223, which is a continuation and claimsthe priority benefit of U.S. patent application Ser. No. 15/695,636filed Sep. 5, 2017, now U.S. Pat. No. 10,019,214, which is acontinuation and claims the priority benefit of U.S. patent applicationSer. No. 14/460,282 filed Aug. 14, 2014, now U.S. Pat. No. 9,753,687,which is a continuation and claims the priority benefit of U.S. patentapplication Ser. No. 14/147,440 filed Jan. 3, 2014, the disclosures ofwhich are incorporated herein by reference.

BACKGROUND OF THE INVENTION 1. Field of Invention

The present invention relates generally to a wearable computing devicethat uses a programmed local tag. Specifically, the present inventionrelates to a wearable computing device having a head-mounted display(HMD) and a controller. The HMD provides a field of view in which atleast a portion of an environment of the wearable computing device isviewable or within range.

2. Description of the Related Art

Wearable systems can integrate various elements, such as miniaturizedcomputers, input devices, sensors, detectors, image displays, wirelesscommunication devices as well as image and audio processors, into adevice that can be worn by a user. Such devices provide a mobile andlightweight solution to communicating, computing and interacting withone's environment. With the advance of technologies associated withwearable systems and miniaturized optical elements, it has becomepossible to consider wearable compact optical displays that augment thewearer's experience of the real world.

By placing an image display element close to the wearer's eye(s), anartificial image can be made to overlay the wearer's view of the realworld. Such image display elements are incorporated into systems alsoreferred to as “near-eye displays”, “head-mounted displays” (HMDs) or“heads-up displays” (HUDs). Depending upon the size of the displayelement and the distance to the wearer's eye, the artificial image mayfill or nearly fill the wearer's field of view.

US Publication 2013/0069985 A1 by Wong et al, “Wearable computer withsuperimposed controls and instructions for external devices” uses awearable computing device for determining if a target device is withinview and then either learns about and the augments the reality of thetarget device through a service network. As described in thispublication, the wearable computing device may provide the wearer withadditional means by which the wearer can control the target device,provide input to the target device, receive instructions for operatingthe target device, receive status information regarding the targetdevice, and/or receive other information related to the target device.

While this invention provides unique capability, it requires that thetarget device to be able to communicate with the server network. In manycases, the amount of information to be accessed over the server networkdoesn't warrant the expense of adding electronics to the target deviceto have it access the server network, that is a simple set ofinstructions, background data etc., is a limited amount of data, thatreally doesn't require access to the internet. What is required is aless expensive and more local means to access information of the targetdevice.

While US Publication 2013/0069985 provides unique capability, therequirement that the target device communicate with the server networkis a disadvantage as in many cases, server networks may not beavailable. For instance, a statue in a park may not have any ability tocommunicate with a server network. In many cases the target device willnot have integration, or warrant, control of the target device through aserver network.

Although control of a target device such as a refrigerator to dispenseice may not require access a server network to request ice and thereforeit is much easier to have the user directly dispense ice. However, itmay be quite useful to at least have operating instructions and otherrelated information of the target device without need for access to theInternet.

Moreover, there maybe security issues for a general user to learn abouta target device that does not want to interact with a server network.What is required is a means to have a more secure augmented enhancementwithout connection to a server network.

In many cases, a target device may need information created more quicklyfor safety reasons, that is speed of information is critical and waitingfor access through the server networks through the internet may beslowed by connection speeds of web pages not responded quickly, or worsebe offline. What is required is a means to augment a target devicewithout requiring a connection to the server networks.

In other cases, target device information is annotated with otherinformation, pop-up menus and data, advertisement and the like. This maynegatively impact the user experience as well as may slow the experiencedown. What is required is a means to augment a target device withouthaving ads or pop-up menus that is served by the Internet but ratherobtained, if at all, only as the manufacturer or user who programs thelocal data requires.

In the cases contemplated by the related art, the manufactured targetdevice includes expensive electronics for communicating with a wearabledevice. In many cases, the purchasers of these target devices may neveruse this capability and therefore is a waste. What is needed is for asimplified way to add this capability by the purchaser.

Finally, in the cases contemplated by the related art, the manufacturedtarget device may already be manufactured and have no built-incapability. Therefore, what is needed is a simplified way to add thiscapability by the purchaser.

SUMMARY OF THE CLAIMED INVENTION

One embodiment of the present invention is a method for using a wearablecomputing device to interact within an environment. The method includeslocating a programmed local tag of a target device within theenvironment of the wearable computing device. The wearable computingdevice includes a head-mounted display (HMD) that provides a field ofview in which at least a portion of the environment is viewable. Thewearable computing device also includes a wireless communication thatcan “poll” local target devices within range. In addition, the HMD isoperable to display images superimposed over the field of view or withina range. The method further includes obtaining target device informationrelated to the target device from the programmed local tag. The targetdevice information defines a virtual control interface for eitherproviding information of the target tag or for controlling the targetdevice and identifies a defined area of the target device on which thevirtual control interface is to be provided. The method further includescontrolling the HMD to display the virtual control interface as an imageis superimposed over the defined area of the target device in the fieldof view.

In a second aspect, a non-transitory computer readable medium isprovided. The non-transitory computer readable medium has storedinstructions that are executable by a computing device to cause thecomputing device to perform functions. The functions include:

locating a programmed local tag of a target device within a field ofview provided by a see-through display controlled by the computingdevice;

obtaining target device information related to the target device fromthe programmed local tag, wherein the target device information definesa virtual control interface for controlling the target device andidentifies a defined area of the target device on which the virtualcontrol interface is to be provided; and

controlling the see-through display to display the virtual controlinterface as an image superimposed over the defined area of the targetdevice in the field of view.

In a third aspect, a wearable computing device is provided. The wearablecomputing device includes a head-mounted display (HMD) and a controller.The HMD is configured to provide a field of view in which at least aportion of an environment of the wearable computing device is viewableor within range. In addition, the HMD is operable to display imagessuperimposed over the field of view. The controller is configured to:

locate a programmed local tag of a target device that is within theenvironment of the wearable computing device;

obtain target device information related to the target device from theprogrammed local tag, wherein the target device information defines avirtual control interface for controlling the target device andidentifies a defined area of the target device on which the virtualcontrol interface is to be provide; and

control the HMD to display the virtual control interface as an imagesuperimposed over the defined area of the target device in the field ofview.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a functional block diagram of a wearable computing device incommunication with a server network and a target device, in accordancewith an example embodiment.

FIG. 2 is a top view of an optical system, in accordance with an exampleembodiment.

FIG. 3A is a front view of a head-mounted display, in accordance with anexample embodiment.

FIG. 3B is a top view of the head-mounted display of FIG. 3A, inaccordance with an example embodiment.

FIG. 3C is a side view of the head-mounted display of FIG. 3A and FIG.3B, in accordance with an example embodiment.

FIG. 4 is a flowchart illustrating a method, in accordance with anexample embodiment.

FIG. 5 is a view of a refrigerator/freezer with superimposed virtualcontrol interfaces, in accordance with an example embodiment.

FIG. 6 is a view of a copier in a ready-to-copy state with asuperimposed virtual control interface, in accordance with an exampleembodiment.

FIG. 7 is a view of a copier in an out-of-paper state with asuperimposed virtual control interface, in accordance with an exampleembodiment.

FIG. 8 is a view of a copier in a jammed state with a superimposedvirtual control interface, in accordance with an example embodiment.

FIG. 9 is a detailed diagram of the programmed local tag.

DETAILED DESCRIPTION

In the following detailed description, reference is made to theaccompanying figures, which form a part thereof. In the figures, similarsymbols typically identify similar components, unless context dictatesotherwise. The illustrative embodiments described in the detaileddescription and figures are not meant to be limiting. Other embodimentsmay be utilized, and other changes may be made, without departing fromthe spirit or scope of the subject matter presented herein. It will bereadily understood that the aspects of the present disclosure, asgenerally described herein, and illustrated in the figures, can bearranged, substituted, combined, separated, and designed in a widevariety of different configurations, all of which are contemplatedherein.

A wearable computing device may facilitate the wearer's operation of orunderstanding of a particular device, described herein as a “targetdevice,” that is located in the wearer's environment. The target devicecan be, but is not limited to any electrical, optical, or mechanicaldevice. For example, the target device may be a home appliance, such asa refrigerator, espresso maker, television, garage door, alarm system,indoor or outdoor lighting system, or an office appliance, such as acopy machine, combinations thereof or the like. The target device mayhave an existing user interface that may include, for example, buttons,a touch screen, a keypad, or other controls through which the targetdevice may receive control instructions or other input from a user. Thetarget device's existing user interface may also include a display,indicator lights, a speaker, or other elements through which the targetdevice may convey operating instructions, status information, or otheroutput to the user. Alternatively, the target device may have nooutwardly visible user interface. As described herein, a wearablecomputing device may provide the wearer with the ability to augment thetarget device by having preloaded data related to the target deviceobtained from a local and inexpensive programmed local tag.

In one example, the wearable computing device includes a head-mounteddisplay (HMD) that enables its wearer to observe the wearer's real-worldsurroundings and also view a displayed image, such as acomputer-generated image. In some cases, the displayed image may overlaya portion of the wearer's field of view of the real world. Thus, whilethe wearer of the HMD is going about his or her daily activities, suchas working, walking, driving, exercising, etc., the wearer may be ableto see a displayed image generated by the HMD at the same time that thewearer is looking out at his or her real-world surroundings.

The displayed image might include, for example, graphics, text, and/orvideo. The content of the displayed image can relate to any number ofcontexts, including but not limited to the wearer's current environment,an activity in which the wearer is currently engaged, the biometricstatus of the wearer, and any audio, video, or textual communicationsthat are directed to the wearer. The images displayed by the HMD mayalso be part of an interactive user interface. Thus, the imagesdisplayed by the HMD may include menus, selection boxes, navigationicons, or other user interface features that enable the wearer to invokefunctions of the wearable computing device or otherwise interact withthe wearable computing device.

The HMD may include an optical system that is mounted to a head-mountedsupport. The optical system may be operable to present virtual imagesoverlaid upon a real-world view to a wearer. To display a virtual imageto the wearer, the optical system may include a light source, such as alight-emitting diode (LED), that is configured to illuminate a displaypanel, such as a liquid crystal-on-silicon (LCOS) display panel. Thedisplay panel generates light patterns by spatially modulating the lightfrom the light source, and an image former forms a virtual image fromthe light pattern. Furthermore, the HMD may include a camera configuredto capture images that may be similar to the wearer's field of view. Thecamera may be integrated into the optical system or can be mounted on,or integrated into, the head-mounted support.

The wearable computing device may control the HMD to provide an“augmented reality” experience to the wearer that facilitates thewearer's interaction with target devices. In one example, the wearablecomputing device detects and identifies one or more target devices thatare within the wearer's environment. The wearable computing device maydetect and/or identify a target device in various ways. As one example,the wearable computing device may recognize a target device by analyzinga video or one or more still images corresponding to the wearer'spoint-of-view. As another example, the wearable computing device maydetect a beacon or other signal transmitted by the target device. Thebeacon or other signal could be, for example, a radio frequency signal,e.g., using WiFi, Bluetooth, or near field communication (NFC), anoptical signal, such as an optical signal emitted by a visible orinfrared LED on the target device, or an acoustic signal, such as anultrasonic signal. In other examples, the wearable computing device maydetect a radio frequency identification (RFID) tag on the target deviceor recognize an optical identification, such as a barcode or quickresponse (QR) code on the target device. In still other examples, thewearable computing device may determine that the location of thewearable computing device is near the known location of a target device.It is to be understood that these methods are exemplary only, as awearable computing device may use other methods to detect and/oridentify a target device in the wearer's environment. It is also to beunderstood that the wearable computing device may use a combination ofmethods to detect and/or identify a target device in the wearer'senvironment.

Once the target device is identified, the wearable computing device maycontrol the HMD to display one or more images that may facilitate thewearer's interaction with and/or understanding of the target device. Forexample, the wearable computing device may determine that a virtualcontrol interface is associated with the target device and then controlthe HMD to display the virtual control interface as an imagesuperimposed over a defined area on the surface of the device. Thus, thevirtual control interface may appear to be affixed to the target device,i.e., it stays anchored on the target device as the wearer moves.Alternatively, the HMD may display the virtual control interface so thatit remains within the wearer's field of view, rather than affixed to thetarget device.

For example, the virtual control interface may be “head-fixed” so thatit remains visible to the wearer as the wearer moves his or head (e.g.,to the left or the right) regardless of whether the wearer is looking atthe target device. Thus, the HMD might display a virtual controlinterface for a target device that is not currently within the wearer'sfield of view. The wearable computing device may provide operatinginstructions of the target device or provide target device history orprovide manufacturing data or provide information related to use of thetarget device, etc. In this embodiment, the virtual control interface isused to navigate the data stored in a programmed local tag and does notcontrol the target device.

In a further embodiment, to provide a virtual control interface thatappears affixed to a defined area of the a target device, the wearablecomputing device may determine the appearance of the defined area fromthe perspective of the wearer's field of view and adjust the shape,size, and orientation of the image so that it corresponds to theperspective appearance of the defined area. The wearable computingdevice may also determine the distance to the defined area of the targetdevice and adjust the apparent distance of the virtual control interfaceto match the distance to the defined area. As such, the virtual controlinterface may appear to the wearer as if it is on the surface of thetarget device in the defined area.

The virtual control interface may be displayed on the target device soas to assist the wearer in accomplishing certain tasks. For example, anindication to insert paper in a copy machine may be superimposed at thelocation where the paper should be inserted. As another example,graphical step-by-step instructions that assist a wearer in clearing apaper jam may be presented overlaid upon or near the physical parts ofthe copy machine (as viewable by the wearer) that need to be manipulatedby the wearer in order to clear the paper jam. Thus, the wearablecomputing device may present to a wearer virtual images with content andplacement location that may vary dynamically due to the environment ortask context.

Further, the wearable computing device may allow for control of the dataprovided by the programmed local tag of the target device viainteractive gestures with the virtual control interface. For example,the virtual control interface displayed by the HMD may include one ormore user interface elements, such as virtual buttons, that allow thewearer to manipulate the data of the programmed local tag of the targetdevice, such as going through menu options or paging or zooming, etc.The virtual buttons could appear to be on the surface to the targetdevice, or they could appear in a way that is not physically connectedto the target device (e.g., in a “head-fixed” virtual controlinterface).

The wearable computing device may recognize movement of the wearer'sfingers towards a virtual button as a control instruction for the dataassociated with the programmed local tag of the target device. Forexample, the wearer may touch a location on the refrigerator where avirtual button in the virtual control interface appears and dataassociated with the programmed local tag of the target device locationmay appear. The wearable computing device may recognize this touchingmotion as a control instruction provide the data associated with theprogrammed local tag of the target device for this control.

The wearable computing device may further recognize the wearer's motionswith respect to a virtual control interface located at an arbitraryposition. For instance, the wearable computing device may recognizenon-contact gestures towards the apparent position of the virtualcontrol interface as control instructions for data associated with theprogrammed local tag of the target device. Furthermore, the wearablecomputing device may recognize inputs received through a user interfaceas control instructions for data associated with the programmed localtag of the target device. Such input may include, for example, providingdata associated with the programmed local tag of a touch interactionwith a touchpad, actuation of one or more buttons or keys on a keypad,or voice commands.

The wearable computing device may be communicatively coupled to a servernetwork with wireless communication means. Furthermore, the wearablecomputing device may communicate with the server network in order toachieve enhanced functionality during interactions with a target device.For instance, the wearable computing device may send to the servernetwork one or more point-of-view images from a camera mounted on theHMD. The server network may then use an image recognition algorithm toidentify a target device in the one or more point-view images.

The server network may thus add to the data associated with theprogrammed local tag of the target device.

FIG. 1 is a functional block diagram of a wearable computing device 10that is able to communicate with a server network 12 and a target device14 and a programmed local tag 13. The server network 12 is a network ofone or more servers and may include one or more databases or othercomponents. The programmed local tag 13 can be any device that may becontrolled or polled or interacted with, either directly or indirectly,by the wearer of wearable computing device 10. For example, and aprogrammed local tag 13 can be tag a that holds the data related to ahousehold appliance or device, such as a refrigerator, television,dishwasher, audio system, video system, alarm system, thermostat, garagedoor, etc. Alternatively the programmed local tag 13 of a target device14 can be tag that holds the data related to an office appliance ordevice, such as a copy machine, fax machine, projection system, securitysystem, etc. Other examples of target device 14 and related programmedlocal tags 13 are also possible.

In one example, wearable computing device includes a wirelesscommunication interface 16 for wirelessly communicating with servernetwork 12 and a wireless communication interface 18 for wirelesslycommunicating with related programmed local tags 13 of the target device14. Wireless communication interface 16 can use any form of wirelesscommunication that can support bi-directional data exchange over apacket network (such as the internet). For example, wirelesscommunication interface 16 can use 3G cellular communication, such asCDMA, EVDO, GSM/GPRS, or 4G cellular communication, such as WiMAX orLTE. Alternatively, wireless communication interface 16 can communicatewith server network 12 via a wireless local area network (WLAN), forexample, using WiFi.

Wireless communication interface 18 may be configured to communicatewith programmed local tag 13 of target device 14 directly, for example,using an infrared link, Bluetooth, or ZigBee. Alternatively, wirelesscommunication interface 18 may be configured to communicate with theprogrammed local tag 13 of target device 14 indirectly, such as througha WLAN using WiFi. The wireless communications can be uni-directional,for example, with wearable computing device 10 transmitting one or morecontrol instructions for target device 14. Alternatively, the wirelesscommunications can be bi-directional, so that the programmed local tag13 of target device 14 may communicate status information of theprogrammed local tag 13, such as, battery life, programming status inaddition to receiving control instructions.

Although FIG. 1 illustrates an example in which the wearable computingdevice 10 includes two wireless communication interfaces, it is to beunderstood that wearable computing device 10 can include one wirelesscommunication interface that is able to communicate with both servernetwork 12 and the programmed local tag 13 of target device 14. Forexample, wearable computing device 10 may be able to use WiFi, or otherform of wireless communication, to access a WLAN that supportscommunication with both server network 12 and the programmed local tag13 of target device 14.

The programmed local tag 13 of target device 14 does not communicatereal time with server network 12 and therefore does not have expensiveradios and expensive broad input out capability to the internet,however, the programmed local tag 13 of target device 14 can bepreprogrammed by local connections means at the manufacturer of targetdevice 14, or can be programmed by a third party company for assistingthe target device manufacturer or the programmed local tag 13 of targetdevice 14 may be a generic device and programmed by the user or owner ofthe target device 14 by downloading data locally once from the internetor other data storage locations. Like RFID and other tags, thisprogrammed local tag 13 of target device 14 can be an “augmented datatag” and therefore it comprises a variety of related data. Programmedlocal tag 13 is capable of dynamic interaction to the wearable computerdevice or any device, such as a smartphone or other dynamic reader andviewer.

Wearable computing device 10 also includes a head-mounted display (HMD)20. In one embodiment, HMD 20 includes a see-through display. Thus, thewearer of wearable computing device 10 may be able to look through HMD20 and observe a portion of the real-world environment of the wearablecomputing device 10, i.e., in a particular field of view provided by HMD20. In addition, HMD 20 is operable to display images that aresuperimposed on the field of view, for example, to provide an “augmentedreality” experience. Some of the images displayed by HMD 20 may besuperimposed over particular objects in the field of view, such astarget device 14. However, HMD 20 may also display images that appear tohover within the field of view instead of being associated withparticular objects in the field of view.

HMD 20 can be configured as, for example, eyeglasses, goggles, a helmet,a hat, a visor, a headband, or in some other form that can be supportedon or from the wearer's head. Further, HMD 20 may be configured todisplay images to both of the wearer's eyes, for example, using twosee-through displays. Alternatively, HMD 20 may include only a singlesee-through display and may display images to only one of the wearer'seyes, either the left eye or the right eye.

The functioning of wearable computing device 10 may be controlled by aprocessor 22 that executes instructions stored in a non-transitorycomputer readable medium, such as data storage 24. Thus, processor 22 incombination with instructions stored in data storage 24 may function asa controller of wearable computing device 10. As such, processor 22 maycontrol HMD 20 in order to control what images are displayed by HMD 20.Processor 22 may also control wireless communication interface 16 (e.g.,in order to communicate with server network 14) and wirelesscommunication interface 18 (e.g., in order to transmit controlinstructions to the programmed local tag 13 of target device 14).

In addition to instructions that may be executed by processor 22, datastorage 24 may store data that may facilitate interactions with theprogrammed local tag 13 of target devices such as target device 14. Forexample, data storage 24 may function as a database of informationrelated to the programmed local tag 13 of target devices.

Such information may be used by wearable computing device 10 to identifytarget devices that are detected to be within the environment ofwearable computing device 10 and to define what images are to bedisplayed by HMD 20 when target devices are identified.

In one example, the information related to a target device defines avirtual control interface that is to be displayed on the surface of thetarget device in a defined area. The virtual control interface may bedefined in terms of its visual elements, which can appear as virtualbuttons, switches, scroll bars, keys, or any other known elements forreceiving input from a user. The virtual control interface may also bedefined in terms of one or more control instructions for controlling thetarget device. For example, a particular visual element of a virtualcontrol interface, such as a virtual button, may be associated with aparticular control instruction, so that actuation of the virtual buttonmay result in its associated control instruction being sent to theprogrammed local tag 13 of the target device 14.

The information the programmed local tag 13 of a target device 14 mayalso define other images that may be displayed, such as instructions foroperating the target device. Thus, once processor 22 has identified theprogrammed local tag 13 of a target device 14, processor may retrieveinformation related to the programmed local tag 13 of the target device14 from data storage 24 and may control HMD 20 to display images definedby the programmed local tag 13 of the target device 14 information.

Alternatively, instead of retrieving target device information from datastorage 24, the processor may obtain the target device 14 information bycommunicating with the programmed local tag 13, for example, viawireless communication interface 16. For example, the programmed localtag 13 may either have an ID tag that allows the wearable computer to goto the internet to get information of the target device 14 or it maydownload a lot of data of the programmed local tag 13 of target device14 locally.

This allows for the possibility of using dynamic data of the internet orpreprogrammed data of the programmed local tag 13 of target device 14.The information of the programmed local tag 13 of target device 14 ismore than for identification, such as might be stored on an RFIDidentification, barcode or QR code. The related art describes suchidentification tags as a “trigger” to get to the internet for obtaininglarger amounts of data. Rather, the programmed local tag 13 of targetdevice 14 has much more data, stored locally as may be seen on theinternet such as owners manuals, history data, use data and the like. Itmay include videos, texts, pictures, etc. But it also can include linksto the internet and in this way, the wearable device might use the linksto the internet to actually in real time or in later time search theinternet for data. An example is a target device that is a work of artor one of history, where the information downloaded from the programmedlocal tag 13 of the target device 14 can have information about thetarget device stored on the programmed local tag 13 of target device 14,but it also could provide links on the internet for further study.

Wearable computing device 10 may also include a camera 26 that isconfigured to capture images of the environment of wearable computingdevice 10 from a particular point-of-view. The images can be eithervideo images or still images. The point-of-view of camera 26 maycorrespond to the direction where HMD 20 is facing. Thus, thepoint-of-view of camera 26 may substantially correspond to the field ofview that HMD 20 provides to the wearer, such that the point-of-viewimages obtained by camera 26 may be used to determine what is visible tothe wearer through HMD 20.

As described in more detail below, the point-of-view images obtained bycamera 26 may be used to detect and identify target devices that arewithin the environment of wearable computing device 10. The imageanalysis can be performed by processor 22. Alternatively, processor 22may transmit one or more point-of-view images obtained by camera 26 toserver network 12, via wireless communication interface 16, for theimage analysis. When server network 12 identifies a target device in apoint-of-view image, server network 12 may respond with informationrelated to the target device.

In addition to image analysis of point-of-view images obtained by camera26, target devices, such as the programmed local tag 13 of target device14 can be detected and identified in other ways. In this regard,wearable computing device 10 may include one or more sensors 28 fordetecting when a programmed local tag 13 of target device 14 is withinits environment. For example, sensors 28 may include radio frequencyidentification (RFID) reader that can detect an RFID tag on a targetdevice. Alternatively or additionally, sensors 28 may include a scannerthat can scan an optical code, such as a bar code or QR code, on thetarget device. An optical code may be detectable in visible light.Alternatively, the optical code might be detectable using infraredradiation. Further, sensors 28 may be configured to detect a particularbeacon signal transmitted by a target device. The beacon signal can be,for example, a radio frequency signal, an ultrasonic signal, or anoptical signal (which can be transmitted by a visible or infrared LED onthe target device). Sensors 28 may further include one or more motionsensors, such as accelerometers and/or gyroscopes.

Once the device is identified by a RFID tag or QR code, etc., the datais then read from the programmed local tag 13 of target device 14, whichhas far more data than the RFID tag or QR code. In this way, more datacan be obtained for augmentation locally or off line, especially if nointernet or server network is available.

Also, even if the server network is available, information stored on theprogrammed local tag 13 of target device 14 is obtained more quickly forease of use for safety reasons, and is obtained more securely since itdoesn't have to go thru the internet. Moreover, information retrievedmay direct the users more efficiently than a typical internet searchwould, and could be free of ads and off page directions.

A target device 14 can also be determined to be within the environmentof wearable computing device 10 based on the location of wearablecomputing device 10. For example, wearable computing device 10 mayinclude a Global Position System (GPS) receiver 30 that is able todetermine the location of wearable computing device 10. Wearablecomputing device 10 may then compare its location to the known locationsof target devices (e.g., locations stored in data storage 24) todetermine when a particular target device is in the vicinity.Alternatively, wearable computing device 10 may communicate its locationto server network 12, via wireless communication interface 16. Servernetwork 12 may respond with information relating to any target devicesthat are nearby.

When the GPS location is known and the data of the programmed local tag13 of target device 14 used for augmentation, server network 12 in realtime or asynchronously can communicate with the internet to inform theowners of the information that data stored in the programmed local tag13 of target device 14 was downloaded. This is useful for tracking andother related matters by the owner of the data of the local tags, forinstance the amount of users downloading the programmed local tag 13 oftarget device 14.

Wearable computing device 10 may also include a user interface 32 forreceiving input from the wearer. User interface 32 can include, forexample, a touchpad, a keypad, buttons, a microphone, and/or other inputdevices. Processor 22 may control the functioning of wearable computingdevice 10 based on input received through user interface 32. Forexample, processor 22 may use the input to control how HMD 20 displaysimages or what images HMD 20 displays. Processor 22 may also recognizeinput received through user interface 32 as a control instruction for atarget device, for example, in conjunction with a virtual controlinterface that HMD 20 is displaying for the target device.

Processor 22 may also recognize gestures as control instructions for atarget device. Thus, while HMD 20 displays a virtual control interfacefor a target device, processor 22 may analyze still images or videoimages obtained by camera 26 to identify any gesture that corresponds toa control instruction associated with the virtual control interface. Forexample, if processor 22 recognizes a finger moving toward a location ofthe target device corresponding to where a virtual button appears in thevirtual control interface, then processor 22 may recognize a controlinstruction associated with the virtual button. In some examples, agesture corresponding to a control instruction may involve the wearerphysically touching the target device, for example, using the wearer'sfinger, hand, or an object held in the wearer's hand. However, a gesturethat does not involve physical contact with the target device, such as amovement of the wearer's finger, hand, or an object held in the wearer'shand, toward the target device or in the vicinity of the target device,could be recognized as a control instruction. These gestures may assistin interacting with the programmed local tag 13 of target device 14.

FIG. 1 shows various components of wearable computing device 10, i.e.,wireless communication interfaces 16 and 18, processor 22, data storage24, camera 26, sensors 28, GPS 30, and user interface 32, as beingseparate from HMD 20, one or more of these components can be mounted onor integrated into HMD 20. For example, camera 26 can be mounted on HMD20, user interface 32 can be provided as a touchpad on HMD 20, processor22 and data storage 24 can make up a computing system in HMD 20, and theother components of wearable computing device 10 can be similarlyintegrated into HMD 20. Alternatively, wearable computing device 10 canbe provided in the form of separate devices that can be worn on orcarried by the wearer. The separate devices that make up wearablecomputing device 10 can be communicatively coupled together in either awired or wireless fashion.

FIG. 2 illustrates a top view of an optical system 100 that can functionas a see-through display (and may correspond to a see-through display inHMD 20). In particular, optical system 100 is configured to display avirtual image superimposed upon a real-world scene viewable along aviewing axis 104, for example, by eye 122 of the wearer. For clarity,distal portion 132 and proximal portion 134 represent optically-coupledportions of the optical system 100 that may or may not be physicallyseparated. In the example illustrated in FIG. 2, a distal beam splitter110 is located in the distal portion 132 and a proximal beam splitter116 is located in the proximal portion 134. The viewing axis 104 mayextend through the proximal beam splitter 116.

Distal beam splitter 110 may be optically coupled to a display panel 106and a light source 108. The display panel 106 may be illuminated by thelight source 108 via the distal beam splitter 110. The light source 108may include one or more light-emitting diodes (LEDs) and/or laserdiodes. The light source 108 may further include a linear polarizer thatacts to pass one particular polarization to the rest of the opticalsystem. In an example embodiment, the distal beam splitter 110 is apolarizing beam splitter that reflects light depending upon thepolarization of light incident upon the beam splitter. Thus, s-polarizedlight from the light source 108 may be preferentially reflected by adistal beam-splitting interface 112 towards the display panel 106. Thedisplay panel 106 in the example embodiment is a liquidcrystal-on-silicon (LCOS) display, but can also be a digital lightprojector (DLP) micro-mirror display, or other type of reflectivedisplay panel. The display panel 106 acts to spatially-modulate theincident light to generate a light pattern. Alternatively, the displaypanel 106 may be an emissive-type display such as an organiclight-emitting diode (OLED) display.

In the example in which the display panel 106 is a LCOS display panel,display panel 106 generates a light pattern with a polarizationsubstantially perpendicular to the polarization of light initiallyincident upon the panel. In this example embodiment, display panel 106converts incident s-polarized light into a light pattern withp-polarization. The generated light pattern from the display panel 106is directed towards distal beam splitter 110. The p-polarized lightpattern passes through distal beam splitter 110 and is directed alongoptical axis 114 towards the proximal region of optical system 100. Inan example embodiment, proximal beam splitter 116 is also a polarizingbeam splitter. The light pattern is at least partially transmittedthrough the proximal beam splitter 116 to the image former 118.

In one example embodiment, image former 118 includes concave mirror 130and quarter-wave plate 128. The light pattern passes throughquarter-wave plate 128 and is reflected by concave mirror 130. Thereflected light pattern passes back through quarter-wave plate 128.Through the interactions with quarter-wave plate 128 and concave mirror130, the light patterns are converted to the s-polarization and areformed into a virtual image. Proximal beam splitting interface 120reflects the virtual image so that is viewable along viewing axis 104.

The real-world scene is also viewable along viewing axis 104 throughviewing window 124. Viewing window 124 may include a linear polarizer inorder to reduce stray light within the optical system. Light fromviewing window 124 is at least partially transmitted through proximalbeam splitter 116. Thus, both a virtual image and a real-world image areviewable to the viewer's eye 122 through proximal beam splitter 116.

Optical system 100 can also include camera 136 that is configured toimage the real-world scene that is viewable through viewing window 124.Camera 136 can, for example, be optically coupled to the distal beamsplitter 110 as shown in FIG. 2. Thus, some of the light from outsideentering through viewing window 124 may be reflected by proximalbeam-splitting interface 120 toward distal beam splitter 110. Distalbeam-splitting interface 112 may, in turn, reflect at least a portion ofthis outside light toward camera 136. In this way, camera 136 may beconfigured to image the same field of view of the outside world that isviewable by viewer's eye 122 along viewing axis 104.

FIG. 2 depicts distal portion 132 of the optical system housing as tothe left of proximal portion 134 of the optical system housing whenviewed from above, it is understood that other embodiments are possibleto physically realize optical system 100, including distal portion 132being configured to be to the right, below, and above with respect toproximal portion 134.

FIGS. 3A, 3B, and 3C illustrate HMD 200 that is configured in the formof eyeglasses and includes two see-through displays that can be of thetype shown in FIG. 2. FIG. 3A is a front view of HMD 200 withsee-through displays 202 and 204 mounted on a head-mounted support 209.FIGS. 3B and 3C show top and side views, respectively, of HMD 200.Although the HMD is in the form of eyeglasses in this example, it isunderstood that HMDs may take other forms, such as hats, goggles,visors, headbands, or helmets.

Head-mounted support 209 includes lens frames 214 and 216, center framesupport 218, lens elements 210 and 212, and extending side-arms 220 and222. Center frame support 218 and side-arms 220 and 222 are preferablyconfigured to secure head-mounted support 209 to a wearer's head via thewearer's nose and ears, respectively. Each of the frame elements 214,216, and 218 and extending side-arms 220 and 222 may be formed of asolid structure of plastic or metal, or may be formed of a hollowstructure of similar material so as to allow wiring and componentinterconnects to be internally routed through head-mounted support 209.Alternatively or additionally, head-mounted support 209 may supportexternal wiring. Lens elements 210 and 212 are at least partiallytransparent so as to allow the wearer to look through them. Inparticular, the wearer's left eye 208 may look through left lens 212 andthe wearer's right eye 206 may look through right lens 210. See-throughdisplays 202 and 204, which may be configured as shown in FIG. 1, may bepositioned in front of lenses 210 and 212, respectively, as shown inFIGS. 3A, 3B, and 3C. See-through displays 202 and 204 may be attachedto the head-mounted support 209 using support mounts 224 and 226,respectively. Alternatively, see-through displays 202 and 204 may beintegrated partially or completely into lens elements 210 and 212,respectively.

One embodiment of the present invention includes a see-through displayfor each of the wearer's eyes, it is to be understood that a HMD mayinclude a see-through display for only one of the wearer's eyes (eitherleft eye 208 or right eye 206). Further, instead of having see-throughdisplays positioned in front of lens elements 210 and 212, a lenselement can itself function as a see-through display. For example,projectors located on side-arms 220 and 222 can project images onto lenselements 210 and 212, respectively. Special coatings on lens elements210 and 212 may reflect some of the projected light, so that theprojected images may be seen in combination with the real-world viewthrough lens elements 210 and 212. Still other types of see-throughdisplays can be included in an HMD. Alternatively, instead of asee-through display, an HMD can include scanning laser devices thatinteract directly with the wearer's retinas.

HMD 200 may also include various control elements, sensors, userinterfaces, and communication interfaces. In the example illustrated inFIGS. 3A, 3B, and 3C, HMD 200 includes computer 240, touchpad 242,microphone 244, button 246 and camera 232. The computer 240 may controlsee-through displays 202 and 204, using data from camera 232 and/orother sources to determine the virtual image that should be displayed tothe wearer. Thus, HMD 200 may function as a wearable computing device.Alternatively, computer 240 can be located outside of HMD 200, forexample, in a separate device that is worn or carried on the wearer ofHMD 200, and may be communicatively coupled to HMD 200 through wires orthrough a wireless connection.

Touchpad 242, microphone 244, and button 246 may be part of a userinterface through which HMD 200 receives input from the wearer. Thus,the wearer may provide input in the form of a touch interaction withtouchpad 242, in the form of voice commands that are received bymicrophone 244, or by pressing button 246. It is to be understood thatthese user interface elements are exemplary only, as an HMD may includeother types of user interface elements or may lack a user interfacealtogether.

Camera 232 may be mounted on HMD 200 so that it is able to capturepoint-of-view images (either still images or video images) thatsubstantially correspond to the real-world field of view that isobservable through see-through displays 202 and 204. For example, camera232 can be located on center frame support 218 as shown in FIGS. 3A and3B. Alternatively, camera 232 may be located elsewhere on head-mountedsupport 209, located separately from the HMD, or be integrated into oneor both of see-through displays 202 and 204.

Camera 232 may further include a range-finder function that candetermine a distance to an object, such as a target device, in its fieldof view. For example, camera 232 may include an ultrasonic range-finder,a laser range-finder, or an infrared range-finder. Camera 232 mayfurther represent multiple cameras that may be integrated into thehead-mounted support 209 or that may be located remote to thehead-mounted support 209.

Camera 232 may image a field of view that is the same as or similar tothat of wearer's eyes 206 and 208. Furthermore, computer 240 may analyzethe images obtained by camera 232, in order to identify target devicesor other objects in the field of view. Computer 240 can then use thisinformation to control see-through displays 202 and 204 so that theydisplay context-sensitive virtual images.

Computer 240 preferably detects a target device in an image obtained bycamera 232. HMD 200 can then alert the user by displaying a virtualimage that is designed to draw the wearer's attention to the targetdevice. The virtual image can move in response to the wearer'smovements, e.g., head movements may result in the virtual image movingaround the viewable area so as to remain in a fixed position relative tothe target device. Also, the wearable computing device can displayinstructions and introduce location and other visual cues to enhanceinteraction with the target device.

FIG. 4 is a flowchart illustrating an example method 300 for how awearable computing device that includes a head-mounted display (HMD) mayfacilitate the wearer's interaction with the programmed local tag 13 oftarget device 14. The wearable computing device in method 300 maycorrespond to wearable computing device 10 illustrated in FIG. 1, andthe HMD may be configured as illustrated in FIGS. 3A, 3B, and 3C. It isto be understood, however, that the wearable computing device and/or HMDused in method 300 can be configured in other ways.

In this example, method 300 begins with a determination that aprogrammed local tag 13 of target device 14 is within an environment ofa wearable computing device that includes an HMD, as indicated by block302. The determination can be made by the wearable computing device onits own, or by reviewing information on the programmed local tag 13 oftarget device 14. Alternatively, the determination can be made by thewearable computing device after sending information to and receiving aresponse from a server network.

The determination can be made based on information regarding theenvironment that is obtained by the wearable computing device. In oneexample, the information regarding the environment includes an image(either a still image or a video image) that is captured by a camera,for example, a camera mounted on the HMD. The wearable computing devicemay identify the target device from an image analysis of the imageobtained by the camera. Alternatively, the wearable computing device maytransmit the image to a server network, and the server network mayperform the image analysis and transmit back to the wearable computingdevice information that identifies the programmed local tag 13 of targetdevice 14. Also, the programmed local tag 13 of target device 14 isqueried directly.

The identification of the programmed local tag 13 of target device 14may include an identification of the type of target device. For example,an identification of the target device may be a refrigerator, washingmachine, copy machine, thermostat, work of art or historical figure orstatue, etc. The identification of the programmed local tag 13 of targetdevice 14 may further identify the make, model, and/or brand of thetarget device. For example, in the case that the target device is a copymachine, the identification may specify the manufacturer and modelnumber of the target device 14. An identification of a target device canalso identify the target device even more specifically by including, forexample, a serial number, inventory number, owner, and/or location.

Instead of or in addition to images, the wearable computing device canobtain other types of information about its environment. For example,the wearable computer device may detect a beacon that is transmitted byor on behalf of the programmed local tag 13 of target device 14. Thebeacon can be, for example, a radio frequency signal, an optical signal,or an ultrasonic signal. By receiving the beacon, the wearable computingdevice may detect the presence of the programmed local tag 13 of targetdevice 14. In addition, the beacon may include information thatidentifies the target device (e.g., the type of target device, make,model, etc.). Alternatively, after detecting the presence of programmedlocal tag 13 of target device 14 by receiving the beacon, the wearablecomputing may obtain other information (such as an image of the targetdevice or location information) from which the target device can beidentified. In another example, the wearable computing device may detectand identify a target device by reading an RFID tag on the target deviceor by scanning a barcode or QR code on the target device. The wearablecomputing device may also employ a combination of techniques for targetdevice identification. For example, after determining that programmedlocal tag 13 of target device 14 is in the vicinity (e.g., by analyzingimages or by detecting a beacon), the wearable computing device may scana barcode or QR code on the target device in order to identify it.

In some examples, the wearable computing device may determine that atarget device is nearby based on location, such as the GPS location ofthe wearable computing device. For example, the location of the wearablecomputing device may be compared to a database of known locations oftarget devices. The database can be in the wearable computing device.Alternatively, the database may be in the server network. Thus, thewearable computing device may determine its location, communicate itslocation to the server network, and receive back identifications of oneor more target devices that are in the vicinity of the wearablecomputing device. For example, the programmed local tag 13 of targetdevice 14 can be deemed to be in the vicinity of the wearable computingdevice if it is within a defined distance of the wearable computingdevice. The defined distance could, for example, correspond to adistance that is close enough for a typical wearer to be able to reachout and touch the target device. Alternatively, the defined distance canbe a greater distance, for example, correspond to a visual range of atypical wearer. It is to be understood, however, that a wearablecomputing device may also be used to control programmed local tag 13 oftarget device 14 that is outside of visual range.

Based on the identification of the programmed local tag 13 of targetdevice 14, the wearable computing device may obtain target deviceinformation related to the programmed local tag 13 of target device 14,as indicated by block 304. The programmed local tag 13 of target device14 can include various kinds of information related to the target device14. For example, the programmed local tag 13 of target device 14 mayinclude information that defines a virtual control interface forcontrolling the information of the programmed local tag 13 of targetdevice 14. The programmed local tag 13 of target device 14 may alsoinclude information that identifies a defined area of the target deviceon which the virtual control interface is to be provided. Further, theprogrammed local tag 13 of target device 14 may include information thatdescribes a visual appearance of the target device and/or the definedarea of the target device. That way, the wearable computing may be ableto recognize the target device when it is in the wearer's field of viewand be able to display the virtual control information as an image thatis superimposed over the defined area of the target device in thewearer's field of view.

In addition to or instead of information related to a virtual control ofthe information of the programmed local tag 13 of target device 14, theprogrammed local tag 13 of target device 14 may include otherinformation related to the target device 14. For example, the targetdevice 14 information may include instructions for operating the targetdevice 14, as well information defining how and when the instructionsare to be displayed. The instructions could include text and/orgraphics, and they could be displayed superimposed over the targetdevice 14 in the wearer's field of view or in a different part of thetarget device's field of view. The instructions could be displayed inconjunction with a virtual control interface or independently of thevirtual control interface to control the data associated with theprogrammed local tag 13 of target device 14. For example, theinstructions can be displayable in response to a request from the weareror in response to a status condition of the target device. In additionto instructions for operating the target device, the target deviceinformation can include other information that may be found in a usermanual for the target device, such as troubleshooting suggestions,information about obtaining repair service or customer service for thetarget device, warranty information, etc.

The target device information may also include information that isdevice specific and/or user specific. For example, the programmed localtag 13 of target device 14 may include current status informationregarding the specific target device 14, such as whether the targetdevice is fully operational or in a fault condition. User specificinformation could include, for example, an access code that the wearerof the wearable computing device may use to operate the target device.User specific information may also include notes, reminders, or otherinformation that the wearer (or someone else) has asked to be associatedwith the target device. The device specific and/or user specificinformation can be displayed in conjunction with a virtual controlinterface for data stored in the programmed local tag 13 of targetdevice 14 or independently of the virtual control interface.

Once the wearable computing device has obtained, through the programmedlocal tag 13, target device 14 information that defines a virtualcontrol interface, the wearable computing device may control the HMD todisplay the virtual control information as an image superimposed overthe defined area of the target device, as indicated by block 306. Inaddition to displaying the virtual control interface as an image, theHMD may display other images related to the target device, such asinstructions or status information.

The wearable computing device may adjust the size, shape, andorientation of the displayed virtual control interface to match theappearance of the defined area from the perspective of the wearer'sfield of view. For example, if the defined area is rectangular, but thewearer is looking at the defined area at an angle instead of straighton, then the defined area may appear trapezoidal. The shape of thevirtual control interface may then be adjusted so that it fits withinthe trapezoidal defined area. In addition, the size of the virtualcontrol interface may be adjusted based on the apparent size of thedefined area in the wearer's field of view, so as to be smaller when thetarget device is farther away and larger when the target device iscloser. As the wearer moves around, the size, shape, and orientation ofthe displayed virtual control interface may continue to be adjusted sothat it fits within the defined area as seen from the wearer'sperspective. In this way, the virtual control interface may be displayedso that it appears to be on the actual surface of the target device inthe defined area.

The virtual control interface may initially be displayed in the definedarea of the target device, the wearer of the wearable computing devicemay be able to subsequently adjust the location of the virtual controlinterface. For example, the wearer may move the virtual controlinterface to another part of the target device. In some cases, thewearer may be able to move the virtual control interface away from thetarget device so that it appears as an image superimposed over anotherobject in the field of view or so that the virtual control interfacesimply “hovers” in the field of view unconnected with any specificobject. In other examples, the virtual control interface is “head-fixed”so that it moves with the wearer's head instead of remaining fixed tothe target device or other object.

When the virtual control interface is being displayed, the wearablecomputing device may recognize a control instruction for the informationstored on the programmed local tag 13 of target device 14, as indicatedby block 308. The control instruction can be an instruction from thewearer of the wearable computing device to control the information onthe programmed local tag 13 of target device 14.

In some examples, the control instruction can be recognized from agesture that indicates an interaction with the virtual controlinterface. For example, if the virtual control interface includes avirtual button and the wearer's finger moves toward or touches alocation of the target device corresponding to the location of thevirtual button in the virtual control interface, the wearable computingdevice may recognize the gesture as a control instruction associatedwith the virtual button. Other types of gestures can also be recognizedas control instructions. For example, motions of the wearer's head maybe detected using motion sensors in the HMD (e.g., sensors 28 shown inFIG. 1). An up-and-down motion of the wearer's head may be recognized asa “YES” instruction and a side-to-motion of the wearer's head may berecognized as a “NO” instruction.

Alternatively or additionally, the control instruction can be recognizedfrom input received through a user interface of the wearable computingdevice. In one example, the user interface includes a touchpad (whichmay be mounted on the HMD). Thus, the wearable computing device mayrecognize a touch interaction with the touchpad as corresponding to acontrol instruction associated with the virtual control interface. Inanother example, the user interface includes a microphone. Thus, thewearable computing device may recognize a voice command as correspondingto a control instruction associated with the virtual control interface.

The wearable computing device may transmit the control instruction tothe information of local tag 13 of target device 14, as indicated byblock 310. In some examples, the wearable computing device may transmitthe control instruction directly to the target device, for example,using an infrared or Bluetooth link. In other examples, the wearablecomputing device may transmit the control instruction to the targetdevice via a communication network, such as a wireless local areanetwork (WLAN). In still other examples, the wearable computing devicemay transmit the control instruction to a server network for subsequenttransmission to the target device.

FIG. 5 illustrates an example of how virtual control interfaces may bedisplayed on a refrigerator/freezer. In particular, FIG. 5 shows whatmay be visible to a wearer of a wearable computing device with an HMDafter the wearable computing device has recognized therefrigerator/freezer as a target device. In this example, a firstvirtual control interface 400 is displayed on the freezer door above anice/water dispenser, and a second virtual control interface 402 isdisplayed on the refrigerator door. FIG. 5 shows the attached programmedlocal tag 13 that stores the information of the target device 14.

Virtual control interface 400 may be used to control the operation ofthe ice/water dispenser. As shown in FIG. 5, virtual control interface400 includes the virtual text “Ice” above a virtual button 404 that isassociated with a control instruction for dispensing ice and includesthe virtual text “Water” above a virtual button 406 that is associatedwith a control instruction for dispensing water.

The wearer of the HMD displaying virtual interface 400 may actuatevirtual button 404 by a gesture, such as moving a finger toward thelocation on the freezer door where virtual button 404 appears. Thewearable computing device may recognize the gesture as being associatedwith a control instruction for dispensing ice and transmit the controlinstruction to the refrigerator/freezer.

In addition to, or instead of being actuated through gestures, virtualbuttons 404 and 406 can be actuated in other ways, for example, using auser interface on the wearable computing device. In one example, thewearer may be able to select one of virtual buttons 404 and 406 by atouch interaction with a touchpad, such as a swipe to the left to selectvirtual button 404 or a swipe to the right to select virtual button 406.Virtual control interface 400 may indicate the selected virtual buttonby highlighting it in some fashion, such as by an increase in brightnessor by a change in color. The wearer may then be able to actuate theselected virtual button by another touch interaction, such as a tap onthe touchpad. The touch of the virtual touchpad may lead to moreinformation stored on the programmed local tag 13 of target device 14.

In the example illustrated in FIG. 5, virtual control interface 402 alsoincludes a note 414 that includes the following text: “Need milk”. Note414 can be a user specific message that was established by the wearer ofthe wearable computing device (or by someone else) as a reminder. It isto be understood that different messages can be displayed at differenttimes. For example, note 414 can be discontinued at some point and/orreplaced by a different textual or graphical message. Note 414 can bestored on the wearable computer device or uploaded to the programmedlocal tag 13 of target device 14.

FIGS. 6, 7, and 8 illustrate how a virtual control interface may beprovided for a copier in accordance with the operational state of thecopier. As shown in these figures, the copier includes a QR code, whicha wearable computing device may use to detect and identify the copier,and a communication interface that allows for two-way communication withthe wearer computing device. The communication interface can be awireless interface, such as a WiFi or Bluetooth interface.

FIG. 6 illustrates an example in which the copier is in a ready-to-copystate. An operational state that the copier may indicate to the wearablecomputing device using the communication interface. In this operationalstate, the virtual control interface may include a virtual textinstruction. The virtual text instruction includes the following text:“PLACE SOURCE MATERIAL ONTO COPIER WINDOW” within an arrow thatindicates the copier window. FIG. 6 shows programmed local tag 13 as thevirtual instruction.

FIG. 7 illustrates an example in which the copies needs more paperinserted into Tray 1. When Tray 1 runs out of paper, the wearablecomputing device may adjust the virtual control interface to display oneor more virtual instructions that explain how to fill Tray 1 with paper.As shown in FIG. 7, the virtual instruction includes the text: “INSERTPAPER INTO TRAY 1” and an arrow that indicates Tray 1.

FIG. 8 illustrates an example in which the copier is in a jammed state.When the copier is in a jammed state, the wearable computing device mayadjust the virtual control interface to display one or more virtualinstructions that explain how to clear the paper jam. As shown in FIG.8, the virtual instruction includes the text: “ROTATE ROLLER To CLEARPAPER JAM” and an arrow that indicates the appropriate roller.

A user of the wearable computing device may interact with the virtualcontrol interface in various ways. For example, an up-and-down motion ofthe wearer's head may be interpreted as a “Yes” that causes the wearablecomputing device to transmit a signal (such as an RF signal) that opensthe garage door. A side-to-side motion of the wearer's head may beinterpreted as a “No” that causes the wearable computing device to stopdisplaying the virtual control interface. Instead of using head motions,the wearer may instruct the wearable computing device to open the garagedoor in other ways. For example, a gesture of the wearer's finger towardthe virtual control interface may be interpreted as a “Yes”.Alternatively, the wearer may actuate a button or interact with atouchpad on the wearable computing device to indicate a “Yes”. A wearermay also be able to provide a spoken “Yes” or “No” instruction to thewearable computing device.

The wearable computing device may display the virtual control interfacein response to an instruction from the wearer. For example, the wearermay instruct the wearable computing device to provide the virtualcontrol interface as the wearer is pulling into the driveway, or evenbefore a garage door is within the wearer's field of view. In thisregard, the wearable computing device can be configured to display thevirtual control interface so that it is affixed to the garage door, orthe virtual control interface can be “head-fixed” so that it isdisplayed in the wearer's field of view regardless of whether the garagedoor is also in the wearer's field of view.

The wearable computing device can also display the virtual controlinterface automatically. For example, the garage door to the wearer'sresidence can be a known location that is stored in the wearablecomputing device. When the wearable computing device determines (e.g.,using GPS) that is in the vicinity of the garage door's known location,the wearable computing device may begin scanning for a QR codeassociated with the garage door. Alternatively, the wearable computingdevice may begin scanning for the QR code after receiving a beaconsignal transmitted by the garage door opening or in response to otherinformation.

FIG. 9 shows a description of programmed local tag 13, which is similarto those described in the figures above. Programmed local tag 13includes ID memory 930 that stores data related to the identification ofthe target device. ID memory 930 can be ID codes as stored on QR codes,barcodes, RFID codes or can be manufacturer data or even data related tothe local tag itself.

Programmed local tag 13 described in the figures above shows wirelesscommunication 924 that allows for communication with an outside wearablecomputer device. Wireless communication 924 may be WiFi, Blue Tooth, IR,or any other wireless device.

Programmed local tag 13 described in the figures above shows localprogram interface 905. Program interface 905 includes a hard-wiredconnection such as serial, parallel, or other hard-wired connection. Itcan also include an optical hard wired or non-hard wired connection. Itcan also include any wireless connection. This connection is used forprogramming programmed local tag 13 either by the user of manufactureror other third party.

Programmed local tag 13 described in the figures above shows power 927,which is either battery or hard-wired battery power used to powerprogrammed local tag 13.

Programmed local tag 13 described in the figures above is shown anddescribed in FIG. 9, uses memory 923 to store information. Theinformation can be stored in a format that allows the wearable computerto easily access the information and be portrayed in its user interface.It can be stored as any user interface on the internet, which can behyper-linked based, stored as text, images or audio files, or any othermethods.

Programmed local tag 13 described in the figures preferably usesindicators 926 which may have indicator lights for battery powerIndicators 926 may also be accessed by a wearable computer, and may beused to indicate a download or upload of data to memory 923, etc. Itshould be understood that any user need for indicating functionality ofprogrammed local tag 13 can be indicated by indicator 926.

Processor 922 is preferably used to control programmed local tag 13 interms of communicating with other elements of programmed local tag 13.For example, processor 922 may manage the following: inputs/outputs ofthe wireless communication 924, local program interface 905, power 927,indicators 926, ID memory 930 and memory 923.

Connector 929 is any physical connector that connects programmed localtag 13 to target device 14. Including but not limited to sticky tape,gum tape, magnets, Velcro, physical screws or hooks, combinationsthereof or the like.

The above detailed description describes various features and functionsof the disclosed systems, devices, and methods with reference to theaccompanying figures. While various aspects and embodiments have beendisclosed herein, other aspects and embodiments will be apparent tothose skilled in the art. The various aspects and embodiments disclosedherein are for purposes of illustration and are not intended to belimiting, with the true scope and spirit being indicated by thefollowing claims.

What is claimed is:
 1. A method for displaying user interfaces via ahead-mounted display (HMD), the method comprising: capturing images of alocation within a real-world environment via a camera, the capturedimages corresponding to a field of view of the HMD; identifying apredefined target area at the location within the real-world environmentbased on an analysis of the captured images, wherein the identifiedtarget area is associated with preprogrammed data; generating a mixeddisplay on the HMD in accordance with the preprogrammed data, wherein atleast one virtual interface image is superimposed over the field of viewof the real-world environment at the location of the identified targetarea; detecting movement of the HMD, wherein the detected movement movesthe field of view of the HMD relative to the real-world environment; andupdating the mixed display on the HMD based on the detected movement,wherein the at least one virtual interface image appears affixed to thelocation of the identified target area within the real-worldenvironment.
 2. The method of claim 1, wherein the identified targetarea corresponds to an object located in the real-world environment. 3.The method of claim 1, further comprising directing the mixed display toa single eye of a user.
 4. The method of claim 1, wherein a size of theat least one virtual interface image is based on a distance between theHMD and the predefined target area.
 5. The method of claim 1, wherein atleast one other virtual interface image remains within a field of viewof the HMD when the HMD is moved.
 6. The method of claim 1, wherein theat least one virtual interface image includes one or more interfaceelements each corresponding to a different action executable by the HMD.7. The method of claim 6, further comprising receiving user inputindicating a selection of at least one of the interface elements.
 8. Themethod of claim 7, wherein receiving the user input includes capturing agesture by the camera.
 9. The method of claim 7, wherein receiving theuser input includes capturing a voice command by a microphone.
 10. Awearable computing device for displaying user interfaces via ahead-mounted display (HMD), the device comprising: a camera thatcaptures images of a location within a real-world environment, thecaptured images corresponding to a field of view of the HMD; acontroller that executes instructions stored in memory to: identify apredefined target area at the location within the real-world environmentbased on an analysis of the captured images, wherein the identifiedtarget area is associated with preprogrammed data, generate a mixeddisplay on the HMD in accordance with the preprogrammed data, wherein atleast one virtual interface image is superimposed over the field of viewof the real-world environment at the location of the identified targetarea, detect movement of the HMD, wherein the detected movement movesthe field of view of the HMD relative to the real-world environment, andupdate the mixed display on the HMD based on the detected movement,wherein the at least one virtual interface image appears affixed to thelocation of the identified target area within the real-worldenvironment; and the HMD that includes a display panel that displays themixed display.
 11. The device of claim 10, wherein the predefined targetarea corresponds to an object located within the real-world environment.12. The device of claim 10, wherein the HMD directs the mixed display toa single eye of a user.
 13. The device of claim 11, wherein a size ofthe at least one virtual interface image is based on a distance betweenthe HMD and the predefined target area.
 14. The device of claim 10,wherein at least one other virtual interface image remains within afield of view of the HMD when the HMD is moved.
 15. The device of claim10, wherein the at least one virtual interface image includes one ormore interface elements each corresponding to a different actionsexecutable by the HMD.
 16. The device of claim 15 wherein the controllerfurther receives user input indicating a selection of at least one ofthe interface elements.
 17. The device of claim 16, further comprising acamera that captures the user input as a gesture.
 18. The device ofclaim 16, further comprising a microphone that captures the user inputas a voice command.
 19. A non-transitory computer-readable storagemedium having embodied thereon a program, the program being executableby a processor to perform a method for displaying user interfaces via ahead-mounted display (HMD), the method comprising: capturing images of alocation within a real-world environment via a camera, the capturedimages corresponding to a field of view of a head-mounted display HMD;identifying a predefined target area at the location within thereal-world environment based on an analysis of the captured images,wherein the identified target area is associated with preprogrammeddata; generating a mixed display on the HMD in accordance with thepreprogrammed data, wherein at least one virtual interface image issuperimposed over the field of view of the real-world environment at thelocation of the identified target area; detecting movement of the HMD,wherein the detected movement moves the field of view of the HMDrelative to the real-world environment; and updating the mixed displayon the HMD based on the detected movement, wherein the at least onevirtual interface image appears affixed to the location of theidentified target area within the real-world environment.